Rhizocaulus verticillatus (Linnaeus, 1758)
Horsetail hydroid
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Family:  Campanulariidae ()
Max. size: 
Environment:  sessile; marine; depth range 15 - 680 m
Distribution:  Atlantic, Pacific and Arctic Oceans: Svalbard, USA and Canada. Mostly polar, but also in subtropical and boreal.
Diagnosis:   
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans: 
Country info:   
 

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